/*
 * TextServices / TSDotNet / TSNative
 * Marco Maria Bellocchi, Mauro Bampo
 * Copyright(c) 2013.
 * 
 * The MIT License
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * 
 */

// MB 25/01/2013: Created

#include "stdafx.h"
#include "AlphabetCsvCompressor.h"
#include "CsvNumRleEncoder.h"
#include "CsvNumRleDecoder.h"
#include "CharToNibbleEncoder.h"
#include "CharToNibbleDecoder.h"
#include "DictionaryFilter.h"

using namespace TSNative::Services;
using namespace TSNative::Filters;

const char AlphabetCsvCompressor::CHAR_TO_NIBBLE_DICTIONARY[16]	= { '\0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', ',', '.', 'Z', '$' };
const char AlphabetCsvCompressor::BIN_TO_LATIN1_DICTIONARY[256]		= { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 0, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 0, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 0, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 0, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 0, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 0, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 0, 121, 122, 123, 124, 125, 126, 127, 129, 141, 143, 144, 157, 160, 161, 162, 0, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 0, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 0, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 0, 208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 0, 223, 224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 0, 238, 239, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252 };
const char AlphabetCsvCompressor::LATIN1_TO_BIN_DICTIONARY[256]		= { 0, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 145, 146, 147, 148, 149, 150, 151, 0, 152, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 153, 0, 154, 155, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 156, 0, 0, 157, 158, 159, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 241, 242, 243, 244, 245, 246, 247, 248, 249, 250, 251, 252, 253, 254, 255, 0, 0, 0 };

AlphabetCsvCompressor::AlphabetCsvCompressor(CsvCompressorOptions options) {
	if((options & EnableBinToAlphabet) && !(options & EnableCharToNibble))
		throw new exception("The char-to-nibble stage is required to ensure proper mapping to SQL characters.");

	// Build 2 pipelines, one for encoding, one for decoding.
	vector<Filter*> filtersEnc;
	if(options & EnableRle)
		filtersEnc.push_back(new CsvNumRleEncoder());
	if(options & EnableCharToNibble)
		filtersEnc.push_back(new CharToNibbleEncoder(CHAR_TO_NIBBLE_DICTIONARY));
	if(options & EnableBinToAlphabet)
		filtersEnc.push_back(new DictionaryFilter(BIN_TO_LATIN1_DICTIONARY));

	vector<Filter*> filtersDec;
	if(options & EnableBinToAlphabet)
		filtersDec.push_back(new DictionaryFilter(LATIN1_TO_BIN_DICTIONARY));
	if(options & EnableCharToNibble)
		filtersDec.push_back(new CharToNibbleDecoder(CHAR_TO_NIBBLE_DICTIONARY));
	if(options & EnableRle)
		filtersDec.push_back(new CsvNumRleDecoder());
		
	Processor* pEncoder = new PipelineProcessor(filtersEnc);
	Processor* pDecoder = new PipelineProcessor(filtersDec);

	Encoder::Init(pEncoder, pDecoder);
}

AlphabetCsvCompressor::~AlphabetCsvCompressor() {
	delete EncoderImpl();
	delete DecoderImpl();
}